Vision Care in Mexico: Getting Glasses, Contacts, and Eye Exams

Navigating vision care in Mexico is highly affordable and efficient for expats and tourists. This comprehensive guide explains how to secure thorough eye exams, purchase high-quality glasses or contact lenses, and access top-tier ophthalmological treatments while managing costs and avoiding language barriers.

The Landscape of Optometry and Ophthalmology in Mexico

Differentiating Eye Care Professionals

Understanding the structure of vision care in Mexico begins with knowing exactly which type of professional you need to see. Similar to the medical framework in North America and Europe, the Mexican optical industry is primarily divided into two distinct professions: optometrists and ophthalmologists. Knowing the precise difference ensures you receive the correct level of care without overpaying for unnecessary specialized consultations or experiencing frustrating bureaucratic delays.

An optometrista in Mexico is a highly trained, licensed healthcare professional who specializes in examining the eyes to detect defects in vision, signs of injury, ocular diseases, or abnormalities. They are the primary practitioners you will visit for routine eye exams, updating your prescription for eyeglasses, and fitting contact lenses. Most optical shops and major eyewear chains seamlessly employ an in-house optometrist to facilitate immediate, walk-in exams for their retail customers. While they are highly skilled at prescribing corrective lenses and identifying the early warning signs of complex conditions like glaucoma or macular degeneration, they absolutely do not perform invasive surgeries or treat complex diseases.

Conversely, an oftalmólogo is a fully licensed medical doctor who has successfully completed rigorous, specialized residency training in the medical and surgical care of the eyes. You will absolutely need to consult an ophthalmologist if you require treatment for serious eye diseases, complex chemical burns, severe ocular trauma, or surgical interventions such as cataract removal and laser vision correction. Ophthalmologists typically operate out of private medical clinics or massive hospital networks rather than standard retail optical shops. For a broader, more comprehensive understanding of how these medical hierarchies functionally operate, review our detailed guide on Navigating Hospitals and Clinics in Mexico: An Expat’s Guide to Medical Care.

Quality of Clinics and Modern Technology

Expats newly arriving in Mexico are often pleasantly surprised by the exceptional quality and profound modernization of private vision care facilities. The outdated stereotype of rustic medical equipment is entirely inaccurate when looking at the private sector, particularly in major expatriate hubs like Mexico City, Guadalajara, Mérida, and Puerto Vallarta. Retail optical chains and highly specialized private eye clinics proactively invest massive sums of money into cutting-edge diagnostic technology to attract and firmly retain discerning international patients.

When visiting a high-end optometry clinic in Mexico, you can reliably expect to be examined using state-of-the-art digital phoropters, which provide incredibly precise measurements for corrective lenses compared to older, highly subjective manual dials. Furthermore, many elite clinics strictly utilize advanced retinal imaging machines and optical coherence tomography (OCT) scanners. These non-invasive, painless imaging tools allow the practitioner to capture high-resolution, cross-sectional pictures of your retina, enabling the early detection of diabetic retinopathy or macular degeneration long before you experience any noticeable, alarming symptoms.

The physical environments of these top-tier clinics are meticulously designed to maximize patient comfort and flawlessly project clinical excellence. Waiting rooms are typically air-conditioned, spotlessly clean, and staffed by highly attentive receptionists. The seamless integration of this advanced diagnostic technology ensures that the prescription you receive in Mexico will be just as accurate as one you might receive in your home country, completely eliminating any anxieties regarding the quality of care.

The Role of Public vs Private Vision Care

Mexico efficiently operates a highly compartmentalized dual-track healthcare system, and this rigid division extends directly into the realm of vision care. The public healthcare system, which includes the massive infrastructure of the Instituto Mexicano del Seguro Social (IMSS), provides eye care services to millions of Mexican citizens and legally enrolled foreign residents. If you are formally enrolled in IMSS, you have the legal right to receive basic eye exams and surgical treatments for severe ocular diseases through the public hospital network at virtually no point-of-service cost.

However, heavily relying on the public system for routine vision care presents significant logistical challenges for the average expat. Wait times to see an IMSS ophthalmologist for a non-emergency issue can frustratingly stretch for several months. Additionally, public hospitals rarely provide free eyeglasses or contact lenses; they simply provide the paper prescription, leaving you to fulfill it at a private retail shop anyway. Furthermore, the public system operates entirely in Spanish, creating a massive, highly stressful language barrier for non-fluent residents. You can deeply explore these specific systemic challenges in our analysis of Public Healthcare in Mexico: IMSS and IMSS Bienestar Explained for Expats.

Consequently, the vast majority of financially capable expats completely bypass the public system for their vision needs, opting exclusively for the private sector. Private optometry clinics and luxury optical boutiques operate as highly efficient, purely free-market businesses. You can typically secure a comprehensive eye exam on the exact same day you walk into the shop, and the out-of-pocket costs are so incredibly low that utilizing public resources simply does not make mathematical or practical sense for routine maintenance.

Eye Exams and Diagnostic Services

Scheduling a Comprehensive Eye Exam

Securing a routine eye exam in Mexico is a remarkably frictionless process that fundamentally differs from the highly restrictive, appointment-heavy culture of North America. If you simply need to check your visual acuity and quickly update your prescription for a new pair of glasses, you rarely need to book a formal appointment weeks in advance. The Mexican optical retail market is heavily geared toward total walk-in convenience, especially in large urban centers.

In almost any mid-sized city or major commercial shopping mall, you will find numerous, brightly lit optical shops. The vast majority of these shops feature a small, dedicated examination room in the back, permanently staffed by a licensed optometrist. You can simply walk in off the street, browse the extensive frame selection, and request an eye exam on the spot. If the optometrist is currently occupied with another patient, you will typically only wait ten to fifteen minutes. This immediate accessibility removes the procrastination often associated with preventive health maintenance.

For significantly more complex diagnostic exams—such as specialized contact lens fittings for severe astigmatism, complex pediatric eye exams, or detailed consultations for chronic dry eye syndrome—it is highly advisable to call ahead or book an appointment online with a dedicated, standalone optometry clinic. Many high-end clinics allow you to schedule your visit via WhatsApp, which is the dominant communication platform for businesses in Mexico. When messaging the clinic, you can seamlessly use translation tools to request a comprehensive consultation, avoiding the anxiety of a live phone call in a foreign language.

What to Expect During Your Consultation

A comprehensive eye exam in a private Mexican clinic closely mirrors the rigorous clinical protocols you would experience in the United Kingdom or Canada. The consultation typically begins with a detailed, highly methodical medical history intake. The optometrist will ask about any chronic conditions, such as diabetes or hypertension, which can impact long-term ocular health. You must bring a printed list of your current medications, as certain prescriptions can cause dry eyes or light sensitivity.

The physical examination will involve checking your visual acuity using a standard Snellen chart, testing your depth perception, and evaluating your peripheral vision. The optometrist will use a digital phoropter to determine your exact refractive error, systematically flipping through various lenses and asking which combination provides the sharpest, clearest image. They will also utilize a slit lamp microscope to examine the anterior structures of your eye, including the cornea, iris, and lens, meticulously checking for early signs of cataracts or severe corneal scarring.

A crucial component of a comprehensive exam is the glaucoma screening. The optometrist will measure your intraocular pressure using either a traditional contact tonometer or a modern non-contact “air puff” tonometer. If the practitioner needs a clearer view of your retina and optic nerve, they may administer powerful dilating drops. Because these drops cause severe light sensitivity and heavily blurred near vision for several hours, you should always bring a highly polarized pair of sunglasses to your appointment and strictly avoid driving yourself home afterward.

Overcoming Language Barriers

The absolute most significant hurdle expats face during a medical eye exam is the potential language barrier. Accurately describing highly subtle visual distortions, clearly articulating the nature of eye fatigue, or perfectly understanding complex clinical instructions requires a precise vocabulary. While many optical shop retail technicians speak basic conversational English to facilitate sales, the actual licensed optometrist performing your exam may only speak Spanish.

To effectively overcome this, expats clustered in major hubs like Puerto Vallarta, Lake Chapala, and Mexico City actively seek out fully bilingual eye care professionals. Word-of-mouth recommendations carefully sourced within local expat Facebook groups are deeply invaluable for locating optometrists who have studied abroad or possess fluent medical English. We outline the most effective strategies for securely locating these professionals in our comprehensive guide on Finding English-Speaking Doctors and Specialists in Mexico.

If you must visit a strictly Spanish-speaking optometrist, preparation is vital. Use a highly reliable translation app to explicitly write down key phrases before your appointment, such as “blurred vision” (visión borrosa) or “eye strain” (fatiga ocular). When the doctor is using the phoropter to test your vision, the process is highly intuitive; you generally only need to understand the basic numbers one and two (uno o dos) and the common phrase “clearer” (más claro) to successfully navigate the entire refraction test.

Purchasing Eyeglasses and Contact Lenses

Navigating Optical Chains and Independent Boutiques

Once you have your updated prescription firmly in hand, purchasing eyeglasses in Mexico offers a wealth of incredible options ranging from hyper-budget to ultra-luxury. The consumer market is heavily dominated by several massive national corporate chains, the most prominent being Devlyn, Ópticas Lux, and Salud Digna. Devlyn and Ópticas Lux aggressively operate hundreds of brightly lit, ultra-modern retail locations inside major shopping malls across the country. They carry a vast inventory of globally recognized designer frames—such as Ray-Ban, Oakley, and Prada—alongside their own affordable house brands.

Salud Digna represents a highly unique, non-profit approach to Mexican healthcare. They operate massive diagnostic clinics that proactively offer incredibly subsidized services to the general public, including exceptionally cheap eye exams and highly budget-friendly eyewear. While the basic frame selection at Salud Digna may not feature high-end European designers, the absolute clinical quality of the lenses is fundamentally excellent, making it a fantastic option for expats on a strict, fixed retirement budget.

Beyond the corporate chains, Mexico is home to thousands of dedicated, independent optical boutiques. These smaller, fiercely locally owned shops often provide highly personalized customer service and carry unique, handcrafted artisan frame brands that you will not find in the massive malls. Exploring these independent boutiques allows expats to support the local economy while frequently securing highly competitive pricing on specialized lens coatings, such as advanced anti-reflective treatments or premium blue-light blocking filters designed for heavy computer use.

Buying Contact Lenses and Specialty Solutions

Purchasing contact lenses in Mexico is a remarkably straightforward, highly efficient process, heavily defined by accessibility. Unlike in the United States, where you must present a valid, unexpired, physician-signed prescription to legally purchase a single box of contact lenses, Mexican pharmacies and retail optical shops operate with significantly more leniency. While it is naturally always medically advisable to have a current prescription to ensure the base curve and diameter perfectly fit your cornea, many massive optical chains will happily sell you your preferred brand of lenses simply by looking at the numbers on your old box.

Major, globally trusted brands such as Acuvue, Bausch + Lomb, and Alcon are completely ubiquitous across the entirety of Mexico. You can highly reliably purchase them at dedicated optical shops, massive supermarket pharmacies like Walmart, and even bulk wholesale clubs like Costco Mexico. However, if you require highly specialized toric lenses for severe astigmatism, deeply customized rigid gas permeable (RGP) lenses, or complex multifocal contacts, you will likely need to specifically order them through a licensed optometrist, as standard retail shops rarely keep complex parameters in their physical stock.

Maintaining eye health while wearing contacts in Mexico’s highly diverse climates—particularly in dry, high-altitude cities or dusty, humid coastal areas—requires diligent lubrication and hygiene. While standard multi-purpose contact solutions like Opti-Free or Renu are widely available at any local pharmacy, finding highly specific, preservative-free artificial tears or specialized ocular vitamins can be overpriced locally. Many proactive expats rely entirely on iHerb to securely bulk-order premium, preservative-free eye drops and specialized ocular health vitamins. Utilizing iHerb flawlessly ensures you have a reliable, cost-effective supply of the exact wellness products required to keep your eyes comfortable without relying on limited local inventories.

Turnaround Times and Prescription Requirements

One of the absolute most impressive aspects of the Mexican optical industry is the remarkably rapid turnaround time for manufacturing custom prescription eyeglasses. Many of the massive, larger optical chains and high-end independent boutiques proudly possess their own in-house lens grinding and edging laboratories. If you select a frame and simply require a standard single-vision prescription, it is common for the shop to confidently promise “same-day” or even “one-hour” service. You can literally browse the mall, eat a pleasant lunch, and quickly return to collect your fully finished, deeply custom eyeglasses.

For significantly more complex optical requirements, such as intricately progressive lenses, high-index ultra-thin lenses required for severe myopia, or highly customized transition lenses that darken in the sunlight, the manufacturing process will naturally take longer. The shop will typically need to send the order to a massive, centralized laboratory, which usually rigidly requires a turnaround time of three to seven full business days. The retail shop will require a financial deposit upfront (usually fifty percent) and will notify you via WhatsApp the moment your specialized glasses are ready.

If you recently received a comprehensive eye exam in your home country before moving, you absolutely do not need to pay for a brand new exam in Mexico just to buy a pair of glasses. Mexican optical shops will readily, happily, and legally accept valid paper prescriptions written by foreign doctors from the US, Canada, or the UK. Simply bring your printed prescription card to the counter, and the trained technicians will perfectly translate the optical measurements to craft your new lenses. You can read more about how to manage these retail interactions in our article on Pharmacies in Mexico: How to Get Medications (OTC vs Prescription).

Specialized Treatments and Vision Correction

Treating Glaucoma and Retinal Issues

While routine refractive errors are seamlessly handled by retail optometrists, the unfortunate reality of age-related ocular diseases requires the specialized intervention of a licensed ophthalmologist. Mexico proudly possesses a world-class medical infrastructure for treating chronic and acute eye conditions. If you are diagnosed with glaucoma, intensely managing the dangerous intraocular pressure strictly requires absolute, daily adherence to prescription eye drops. The vast majority of standard glaucoma medications are readily available at all major Mexican pharmacy chains.

Cataracts, a natural clouding of the eye’s lens that commonly affects the massive community of older expats, are treated with unparalleled success in Mexico. Safe, highly effective cataract surgery is one of the absolute most frequently performed outpatient medical procedures in the entire country. Private Mexican ophthalmological surgeons utilize advanced phacoemulsification techniques and premium intraocular lenses (IOLs) that are standard in the United States and Europe. The painless surgery is typically flawlessly completed in under thirty minutes, allowing the patient to rapidly return home the very same day with radically restored vision.

For highly complex, dangerous retinal issues, such as severe diabetic retinopathy or rapid macular degeneration, expats must immediately seek out a sub-specialist known as a retinologist. These highly trained, elite surgeons securely administer localized intraocular injections and masterfully perform delicate laser procedures to aggressively halt the progression of vision loss. Proactively establishing a deeply trusting, long-term relationship with a highly vetted, fully bilingual ophthalmologist is absolutely paramount for any expat managing a chronic ocular disease.

Laser Eye Surgery (LASIK) Options

Mexico has proudly established itself as a massive, globally recognized premier hub for elective laser vision correction. Tens of thousands of international medical tourists and local expats undergo LASIK and advanced PRK procedures in Mexico every single year to permanently eliminate their daily reliance on glasses and contact lenses. The massive, undeniable appeal is driven by the unbeatable combination of highly elite, world-class surgical expertise and astoundingly low out-of-pocket financial costs.

Elite ophthalmology surgical clinics located in major Mexican urban cities aggressively invest in the exact same cutting-edge excimer and femtosecond laser platforms strictly utilized by top-tier surgeons in Beverly Hills or London. Many of the highly prominent refractive surgeons operating in Mexico have completed specialized fellowships abroad and proudly hold international board certifications. The strict pre-operative screening process is incredibly rigorous, utilizing advanced corneal topography to ensure you are a safe candidate for the procedure.

The physical recovery time for modern, highly advanced LASIK is incredibly rapid, with the vast majority of patients blissful experiencing perfect, 20/20 vision within just twenty-four hours of the surgery. The massive financial savings are utterly undeniable, but safely selecting the absolute right clinic requires meticulous research to ensure they do not compromise on sterility. For an exhaustive dive into the pricing of these surgical procedures, we highly recommend reading our dedicated guide on Healthcare Costs in Mexico: Doctor Visits, Hospital Stays, and Surgery Expenses.

Costs, Insurance, and Financial Management

Out of Pocket Expenses Comparison

The sheer affordability of routine vision care in Mexico is a massive lifestyle benefit that significantly reduces the overall daily cost of living for established expats. In North America, highly stressed patients frequently avoid the eye doctor strictly due to the exorbitant, unmanageable out-of-pocket costs associated with uncovered exams and wildly overpriced designer frames. In Mexico, the financial barrier to entry is virtually non-existent, allowing you to proactively monitor your eye health without financial anxiety.

To clearly illustrate the profound financial advantages, review this detailed comparative breakdown of typical, out-of-pocket vision care costs in a modern private Mexican clinic:

Vision Service / Product	Average Cost in USA (USD)	Average Cost in Mexico (USD)	Estimated Savings
Comprehensive Eye Exam	$150 – $300	$15 – $45	~ 85%
Basic Single Vision Glasses	$200 – $350	$40 – $100	~ 70%
Premium Progressive Lenses	$400 – $800	$120 – $300	~ 70%
Box of Daily Contact Lenses	$40 – $85	$25 – $50	~ 40%
Cataract Surgery (Per Eye)	$3,500 – $5,000	$1,200 – $1,800	~ 65%
LASIK Surgery (Both Eyes)	$4,000 – $6,000	$1,000 – $1,800	~ 75%

Because these crucial routine costs are so beautifully accessible, financially intelligent expats simply pay cash for their daily vision needs, avoiding the complex bureaucracy of filing minor insurance claims.

Utilizing International Health Insurance

While confidently paying cash is highly efficient for new glasses or routine contact lenses, the massive financial calculus shifts fundamentally and dramatically if you suddenly require a highly complex retinal surgery, an emergency cornea repair, or bilateral cataract removals using premium multifocal implants. These advanced, deeply invasive ophthalmological procedures can very easily rapidly generate private hospital bills exceeding several thousand US dollars.

To aggressively insulate themselves against these sudden expenses, highly responsible expats heavily rely on comprehensive global health insurance policies. Massive international providers offer incredibly robust, highly customizable expatriate plans that flawlessly transcend rigid geographical borders. With a premium, elite policy from Cigna Global, highly prepared expats are powerfully protected against entirely catastrophic ocular emergencies. Furthermore, Cigna Global frequently allows policyholders to strategically bolt on a dedicated “Vision and Dental” module to their primary medical plan.

This highly specific vision module typically provides substantial annual financial limits explicitly earmarked for routine eye exams, prescription eyeglasses, and specialized contact lenses. When utilizing this module, you typically initially pay the Mexican optical clinic out of pocket, meticulously collect the detailed itemized receipt and the doctor’s prescription, and then digitally submit the claim through the massive insurance provider’s online portal for rapid reimbursement. We deeply analyze exactly how to optimally structure these global policies in Choosing Private Health Insurance: Local Mexican Plans vs International Coverage.

Managing Cross Border Payments

When you bravely decide to invest in high-end progressive eyeglasses, purchase a year’s supply of daily contact lenses, or pay the massive upfront deposit for a purely elective LASIK surgery, the final invoice can be substantial. Mechanically paying these massive cross-border medical bills requires highly proactive, intelligent financial planning. Attempting to swipe a standard home-country debit card to pay a sudden $1,500 USD surgical bill in Mexico is incredibly risky, as your home bank will almost certainly instantly trigger an automated, aggressive fraud alert.

Furthermore, traditional banking institutions aggressively apply hidden, highly unfavorable exchange rate markups and exorbitant foreign transaction fees that silently inflate the final cost of your procedure. To permanently eliminate these costly banking traps, modern expats must fully embrace modern financial technology. Establishing a highly secure account with Wise is widely considered the absolute most efficient, totally flawless method for intelligently managing massive cross-border medical payments.

Wise allows you to securely hold large financial balances in multiple global currencies, including Mexican Pesos. When the eye clinic hands you the final invoice, you can use your linked Wise debit card for instant, low-fee digital processing utilizing the real mid-market exchange rate. By proactive structuring your finances to handle these international medical payments seamlessly, you completely eliminate the intense anxiety associated with dealing with blocked cards and terrible exchange rates during a health event. You can learn more about managing medical crises in Medical Emergencies in Mexico: What Expats Should Know and Prepare.

Daily Eye Health Maintenance in Mexico

Environmental Factors and UV Protection

Mexico’s geographical position, largely located between the Tropic of Cancer and the Equator, means the sun’s ultraviolet (UV) rays are significantly more intense than in most parts of North America and Europe. For expats relocating to coastal beach towns or high-altitude mountain cities like Mexico City or San Miguel de Allende, chronic UV exposure is the absolute number one threat to long-term ocular health. Unprotected exposure to these intense rays dramatically accelerates the development of cataracts and significantly increases the risk of macular degeneration.

Daily use of high-quality, 100% UV-protected sunglasses is a non-negotiable health requirement in Mexico. When purchasing sunglasses, do not rely on cheap fashion frames sold on the street; these often lack actual UV filters and can even cause more damage by dilating your pupils and allowing more rays into the eye. Invest in polarized lenses from reputable optical shops to eliminate the blinding glare reflected off white-sand beaches or the desert landscape.

Furthermore, Mexico’s varied environments can be exceptionally dry and dusty. In high-altitude central Mexico, the air is notoriously arid, which frequently leads to chronic dry eye syndrome (queratoconjuntivitis sicca). Proactively using preservative-free lubricating drops several times a day prevents the micro-abrasions on the cornea that lead to inflammation and infection. Ensuring you have a consistent supply of these high-quality drops is essential for your daily comfort and long-term visual clarity.

Managing Eye Health Through Nutrition

The profound connection between what you eat and how you see is often overlooked, but it is a critical pillar of ocular health for expats living in a country with abundant fresh produce. The Mexican diet is naturally rich in lutein and zeaxanthin—two incredibly powerful antioxidants found in leafy greens like spinach and in the vibrant yellow and orange pigments of peppers and corn. These compounds act like “natural sunglasses,” depositing themselves in the retina to filter out damaging blue light.

While the local diet is excellent, many expats choose to supplement their nutritional intake to target specific age-related concerns. High-quality Omega-3 fatty acids, typically sourced from fish oil, are clinically proven to improve the quality of the oil produced by the meibomian glands in the eyelids, which is the foundational cure for dry eye. Because high-grade, purified, and mercury-free fish oil supplements can be difficult to find at local Mexican pharmacies, expats rely heavily on iHerb to bulk-order their trusted international wellness brands.

Utilizing iHerb flawlessly ensures that you have access to the exact, clinically studied ocular vitamins—such as the AREDS2 formulation for macular health—delivered reliably directly to your home. By combining aggressive external UV protection with powerful internal nutritional support, expats can successfully defend their vision against the environmental challenges of the Mexican climate. We explore these nutritional strategies further in our guide on Staying Healthy in Mexico: Essential Tips for Food, Water, and Preventive Care.

Routine Eye Care Habits for Digital Nomads

A massive demographic of the expat community in Mexico consists of “digital nomads” and remote workers who spend eight to ten hours a day staring at computer monitors, tablets, and smartphones. This modern lifestyle leads to a condition known as Computer Vision Syndrome (CVS), characterized by eye strain, persistent headaches, and blurred near vision. In the intense natural light of Mexico, the glare on computer screens can exacerbate these symptoms significantly.

To mitigate digital eye strain, expats should adopt the “20-20-20” rule: every twenty minutes, look at something at least twenty feet away for at least twenty seconds. This allows the ciliary muscles inside the eye to relax and resets your blinking rate, which drops significantly during concentrated screen time. Additionally, when ordering your next pair of glasses in a Mexican optical shop, explicitly request a blue-light filtering coating.

Finally, ensure your workspace is ergonomically aligned and properly lit. Many digital nomads in Mexico prefer to work on open-air patios or in bright cafes; however, the high contrast between a bright environment and a backlit screen is the primary cause of optical fatigue. Using anti-glare screen protectors and ensuring your monitor is positioned slightly below eye level can prevent long-term visual discomfort. Regular annual eye exams with a bilingual optometrist ensure that your digital habits are not causing permanent refractive changes.

References

Primary sources (official)

• Mexican Secretariat of Health (Secretaría de Salud): https://www.gob.mx/salud

Other helpful sources

• US Embassy in Mexico – Medical Practitioners List: https://mx.usembassy.gov/medical-practitioners/
• International Agency for the Prevention of Blindness (IAPB) – Mexico: https://www.iapb.org/learn/vision-atlas/

Disclaimer

The information provided in this article is for educational and informational purposes only and does not constitute professional medical, optometric, legal, or financial advice. Healthcare laws, surgical costs, and clinical protocols in Mexico are subject to change without notice. Always consult with a certified medical professional or licensed ophthalmologist regarding your specific health issues, strictly verify clinic certifications before undergoing surgery, and speak to a licensed insurance broker before purchasing any health insurance policies.